Vacuum pump



Oct- 13,1925 1,556,631 1 v. Rossini-1565M VACUUI tun Filed July 8.19:; 6 snags-gum 1 V/'c for Rage/Mayan Oct; 13;, 925. 1,556,631 V. ROSENHAGEN VAC UUM PUIIP I Filed July 1922 6 Sheets-Sheet 4 Oct. '13, 192 1,556,631

v. ROSENH'AGEN- VACUUM Puur Filed July 8,.1922 7 e Sheets-Sheet 5 v gnumfioq, Victor fiasenha yen v. nossumasu VACUUI PUIP. Filed my 8,1922 GShedts-Sheet e V/ czor Ewen/M 702 Patented 06.13, 1925.

UNITED STATES 1,556,631 PATENT orncs.

VICTOR BDSEHHAGEN, OI BELLEVUE, KENTUCKY, ASSIGNOB TO THE K YDBO HIGH VACUUM PUMP COMPANY, .01 BELLEV'UE, KENTUCKY, A CORPORATION 01 m- TUOKY.

Application filed hi a, ma. Serial No. 578,587.

To all whom it may concern:

Be it known that I, VICTOR a citizen of the United States of America,

- and a resident of Bellevue, in the county of Campbell and State of Kentucky, have invented a new and useful Improvement in a Vacuum Pump, of which the following is a specification.

My invention relates to pumps generally referred to as vacuum pumps, and to a system in which same are employed.

An object of my invention is to provide an efiic'ient pump of this type.

Another object of my invention is to provide a pump which will produce a perfect vacuum.

Anotherobject of my invention is to provide a simple device for the purposes stated.

These and other objects are obtained by means described herein, and disclosed in the accompanying drawing, in which:

Fi 1 is an elevation showing a pump and associated mechanism embodying my invention embraced in a heating system.

Fig. 2 is fluid supply tank of my invention.

Fi 3 is a side elevation of a pump emand valve forming details bodying my invention.

' Fig. 5.

Fi 4 is'a plan view of the device shown in Fig. 3.

Fig. 5 is an enlarged sectional view on line 5-5 of Fig. 3. v

Fig. 6 is a sectional view on line 6-6 of Fig. 7 is a sectional view on line 7-7 of I Fig.6.

Fig. 8 is a' fragmental sectional view on line 8-8 of Fig. 4.

Fig. 9 is a sectional view on line 99 of Fig. 2.

Fig. 10 is an enlarged, sectional view on line 10-40 ofFiIg. s.

Fig-11 is an enlarged sectional view on ingweb 31 line 11-11 of Fig. 4.

Fig. 12 is a plan view taken on line 1212 of Fig. 11.

Fig. 13 is a perspective view showing the under face of a valve shown in Fig. 11, forming a detail of my invention.

Fig. 14 is a "erspective view showing the up or face of e valve shown in Fig. 13.

8 which may driven from any suitable source, one end of Will-h extends into a enerally m invention comprises a shaft ROSENHAGEN,

a. fragmental sectional view of a.

suitable means sue nds the ducts are enlar housing 14 and carries a rotor 9 to which a fluid such as water be fed, the rotor serving to throw the flui outwardly thereby creating a precipitous flow o fluid, which flow of fluid is employed to create a vacuum in a given system, the system being rovided with automatic means for controling the motor and the conditions within the system. i

A suitable support 10 has suitable bearmgs 11 and 12 for the shaft 8, one end of which shaft is openatively connected with a motor 13 and the other end of which shaft extends into a housing 14. The housing re mains stationary and has formed within it a chamber 15 within which the rotor 9 is disposed. In Fig. 5 the rotor and shaft 8 are shown as being formed inte ral with one another, althou h this inte'gua structure is not indispensab e. Suitable roller bearings 16 are employed between the shaft 8 and the bearings 11 and 12. As shown in Fig.

nal box 11 and the bearings 16, and has mounted on it the casing 14. The sleeve also carries a suitable stufling box arrangement 18. The housing 14 isin two sections which may be secured upln one another by any as bolts 19. The forward section 20 of the housing is mounted upon the sleeve 17. The rear section 21 of the .housin has a central a rture 22 concentric wit the shaft 8 an a valve block 23 extends thru the aperture 22. The valve block, is secured, upon the annular flange 24 formed on the rear section 21, by suitable bolts 25. The forward end 26 of the valve block extends into a recess 27 formed cen trally or ducts 270 and- 28 is formed in the valve block, the duct 28 registerin at its rear end with the bore of a pipe 30. t their forward and are spaced from one another by a diametrically extendformed on the valve block. The

rotor 9 comprises tnally within which are formed spiral ducts 32 which extend from the periphery of the rotor to the recess 27 formed centrally of the rotor. The ducts 32 are adapted to communicate with the enlarged ends of the ducts 270 and 28. The side faces of the rotor have grooves 33 formed in i the grooves 33 being s iral and substantia y co-extensive with t e'ducts 32 formui within the rotor, the

within the rotor 9. A pair of ways a disc-like element, con-- grooves terminating some distance from the recess 27 formed in the rotor. Throughout the major portion of the housing and the rotor, a running fit is provided between'the side walls of these two elements as shown in the lower portion of Fig. 5, and at one place in the housing, preferably adjacent the discharge pipe 34, the inner walls of the housing are recessed, as shown at 35 and 36 in the upper portion of Fig. 5. The ducts 32 and rooves 33 are adapted to empty into the disc arge channel 37. A nozzle 38 re- 'duces the width of the discharge channel at a distance from the rotor and is adapted to direct the flow thru a reduced opening 39 in the nozzle into a gradually enlarging bore 40 formed in the discharge pipe 34. The nozzle 38 extends into a chamber 41 formed within the couplings 42. The pipe 43 communicates with the chamber 41. The fluid discharged by way of the pipe 34 is directed to a tank 44. A tlh terposed in the pipe 48 permits communication, thru an inverted U shaped pipe connection 50, between the pipe 48 and pipes 29 and 30. The end of the pipe 34 disposed within the tank 44, carries and communicates with the bore 45 of the coupling 46. The end 47 of the coupling 46 is adapted to discharge into the tank 44. A cage valve 51 is slldably contained within the bore 45, and comprises a forward diaphragm 52 and a perforated rear diaphragm 53 which diaphragms are retained in spaced relation by spacing arms 54. The rear diaphragm 53 has formed in it a slot 55 whereby communication between the intermediate chamber 56, formed between the diaphragms, may be established with a rear chamber 57 located within the coupling between the abutment 58, forming a closure for one end 'of the bore 45, and the rear diaphragm 53. The diaphragm 53 carries abutment lugs 59 adapted to engage the abutment 58 thereby precluding elimination of the chamber 57. bypass 60 is formed in the coupling 46, and is adapted to establish communication between the bore 45 in one end of the coupling and the bore 61 in the other end of the coupling, the abutment 58 forming a wall or diaphragm separating the inner ends of the ores 45 and 61. Normally the by-pass 61 communicates with. the intermediate chamber 56 as shown in Fig. 9, and the pipe 34 is adapted to discharge into the tank 44 thru the open or forward end of the bore 45. When the ca e valve is reciprocated longitudinally of ltself, the diaphragm 52 may assume a position intermediate the mouth of the pipe 34 and the mouth or open end 47 of the bore, wherefore communication between .the ipe 34 and the by-pass60 may be establis ed. A pipe 62 communicates with the'second bore 61 in the coupling, and is adapted to direct fluid from the bore 61 vree way coupling 49 in to a boiler 63 forming part of a radiating system. The boiler 63 is in communication with radiators 64 of the heating system, as is common in the art. The cage valve is controlled by a float 65 contained within the tank 44. The float 65 is mounted at one end of a float rod 66, the other end of which float rod is mounted on one arm 67 of a bell crank lever 68 pivotally mounted on suitable brackets 69 mounted on the tank 44. The other arm 70 of the bell crank lever is connected with a valve stem 71 extendin from the diaphra m 52 of the cage va ve, b

means of a link 72, the ends of which lin are pivotally mounted on the valve stem 71 and the lever arm 70. As the float 65 is raised in the tank 44, the cage valve is actuated whereby to place the pipe 34 in communication with the bypass 60, thereby avoiding overflow of the tank 44 and directing the fluid to the boiler 63. A standard 7 3 carried by the coupling 46 extends downwardly into the tank and carries at its lower end a block 74 having a horizontal bore 75 therethru, in which bore 75 is revolubly contained a tube shaft 76 having mounted on its one end a float stem 77 carrying a float 78. Suitable collars 79 and 80 are mounted on the tube shaft to preclude displacement of the tube shaft. A pipe 81, extending be tween the coupling 46 and the block 74 has its opposite ends in communication with the chamber 57 in the coupling and the bore 75 in the block 74. The revoluble tube 76 has formed in it a slot 82 bearing such a relation to the pipe 81 that the rotatory motion of the tube serves to place the slot 82 into registration with and removes the slot from registration with the bore of the pipe 81. The slot 82 extends thru the wall of the tube shaft, whereby the bore of the pipe may be placed in communication with the bore of the tube shaft. The bore in the tube shaft is open at the ends of the tube shaft. As the float 78 is raised and lowered the chamber 57 in the couplin 46 is alternately placed in and out of registration with the bore in the tube 76. When the chamber 76 in the cou' pling is in communication with the bore in the tube 76 the cage valve 71 may be freelyreciprocated in the coupling bore. The tube 76 is so disposed in relation to the normal supply of water in the tank 44 that the tube is at all times submerged.

As the first mentioned float 65 is raised, it engages the arm 82 of the pivotally mounted bell crank lever 83. The bell crank lever may be mounted in any suitable manner, for example, on a bracket 84 mounted on the coupling 46. The second armi'8 5 of the bell crank lever 83 is pivotally connected. with one end of a rod 86, the other end of which rod 86 is pivotally mounted on a crank arm 87 of an oscillating valve 88. The oscillating valve 88 serves as a control for a presable vacuum gau e 96 may be interposed in the pipe 93. T e pipe 94 communicates with a bellows or other suitable actuating means in the pressure. gauge 89, whereby pressure within the pipe 94 will control the operation of the valve 89 whereby to open and close an electrical circuit 105 embracing suitable movable contacts forming part of the pressure gauge 89. The circuit 105 cmbraces the motor 13 in a suitable source of electrical energy such as the battery 97. Any suitable device ada ted to function as does the device 89 may be employed. The base 90 of the valve 88 carries a suitable housing 98 within which is mova'bly contained a valve member 99 having an arcuate groove 100 in its under-face, which. groove is adapted to be placed in registration with slots 101 and 102 formed in the base 90 and communicating with the bores 91 and 92. The base 90 has formed in it a perforation 103 which may be placed in re istration with slots 101and 102 formed in the base 90 and communicating with the bores'91 and 92.

The base 90 has formed in it a perforation 103 which may be placed in registration with the groove 100 in the valve member 99. The valve member 99 is provided with a suitable head 104 u on which is mounted the crank arm 87 lormally the groove 100 assumes a position such that the slots 101 and 102 communicate with one another thru the groove 100, as shown in dotted lines A, in Fig. 12, wherefore the device 89 is normally subjected to any pressure within the heating system. When the valve member 99 is actuated to such extent in a clock-wise direction, see Fig. 12, that the groove 100 assumes the position shown by dotted lines B, the bore 92 is placed in communication with the perforation 103, and the slot 101 is sealed. The device 89, with which the bore 92 communicates, is so adjusted, that when the pressure operative upon the parts of said device reaches a determinable point, the circuit 105 is completed: The circuit 105 will be completed under two conditions; These two conditions are, first, when the pressure within the heating system rises to the determinable point, and secondly, when the pipe 94 is placed in communication with the atmos here. As soon as the circuit embracing t e motor 13 is closed, the motor becomes operative and rotates the rotor 9 contained within the housing 14.

The operation of my device is as follows: A suitable quantity of fluid, such as water 106, is placed in the system comprising a tank 44 and boiler 63, and the motor 13 is revolu'bly actuated, the motion of the motor being transmitted to the rotor 9 by means of the shaft 8. The rotor is revolved at a high rate of speed, and the water supplied thru the pipe 30 and duct 28 is thrown outwardly by the rotor and passes oflf thru the discharge pipe 34, and returns to the tank 44. The water which is supplied to the rotor enters the ducts 2'70 and 28 and the tendency to the creation of a vacuum in the pipe 29 and duct 270, serves, at all times, to provide an adequate supply of water for the eflicient coo ration of the fluid and the rotor. When t e fluid is thrown outwardly by the rotor, it passes thru the nozzle 38, and whereas the nozzle 38 has a reduced end 39, the water passes thru the chamber 42 into the bore 40 in the pipe 34 at a trer mendous velocity, the water carrying with it such air or other fluid which may be in the chamber 41. The grooves formed on the rotor co-operate with the spiral ducts in the rotor in effecting the desired velocity of the water as it is discharged. The water is supplied to the grooves b way of the recesses 36 formed in the wall s of the housing, and which recesses are supplied with water-from the ducts as they communicate with said recesses. The grooves hear such a relation to the discharge duct that the grooves may.- discharge' into said duct. If

the supply of fluid in the tank 44 becomes too great, the valve 45 is closed ofl b the float 65 and the fluid is then discharge into the system by vWay of the pipe 62. Condensation in the radiators passes thru the check valve and fiows'in-to tank 44. When the water in the tank reaches a determinable hei ht, the motor is-actuated as previously exp ained.

WhatI claim is: 1. In a device of the class described the combination of a housing having a cham- -ber within it, a rotor revolubly contained within the chamber having a recessed cen ter and s iral ducts extending from the re .cess to t e periphery thereof, the housing having a discharge channel into which the ducts in the rotor may discharge, a valve block extending into'the housmg having its one end dis sed within the recess in the rotor, and having a pairof ducts, formed in tending above vthe valve. block establishing communication between the suyiplyggipe and the upper duct in j 'e valve bloc scharge nozzle" mounted on -the housing communicating with the discharge channel and having a reduced discharge end, a coupling having a chamber formed within which chamber the discharge end of the nozzle is disposed, and a pipe extending into the chamber in the coupling into which the discharge nozzle is adapted to direct the flow of fluid which passes thru said nozzle, the pipe being spaced from the nozzle and having a bore which is gradually enlarged as it recedes from the nozzle, and means to establish communication between the chamber in the coupling, and a container within which the pressure is to be reduced.

2. In a device of the class described, the combination of a housing having a chamber formed within it, a rotor revolubly mounted within the chamber having a central recess, spiral duets extending from the recess to the periphery thereof, and spiral grooves upon its opposite sides extending in the same direction as do the ducts and terminating upon the periphery of the rotor, the housing having recessed inner walls whereby communication between the grooves may be effected and whereby fluid discharged from the ducts may enter said grooves, a valve block ex tending into the recess in the rotor having an upper and a lower duct with which the ducts in the rotor alternately communicate, a supply pipe whereby a fluid may be supplied to the ducts in the valve block, means to revolve the rotor, and a discharge pipe whereby fluid may leave the chamber within the housing.

3. In a device'of the class described, the combination of a housing having a chamber formed within it a rotor revolubly mounted within the chain er having a central recess, spiral/ducts extending from the recess to the periphery thereof, and spiral grooves upon its opposite sides extending in the same direction as .do the ducts and terminating upon the periphery of the rotor, the housing having recessed inner walls whereby communication between the grooves may be effected and whereby fluid discharged from the ducts may enter said grooves, a valve block extending into the recess in the rotor having an upper and a lower duct with which the ducts in the rotor alternately communicate, a supply pipe whereby a fluid may be supplied to theducts in the valve block, means to revolve the rotor, and a discharge nozzle communicating witlr-the chamber within thehousing having a reduced discharge end, a coupling having a chamber within which the discharge end of the nozzle is disposed, a pipe extending into the chamber in the coupling and having a mouth into which the fluid discharged by the nozzle is directed.

4. In a deviceof the class described, the combination of a housing having a chamber formed within it, a rotor revolubly n'iounted within the chamber having a central recess, spiral ducts extending from the recess to the periphery thereof, and spiral grooves upon its opposite sides extending in the same direction as do the ducts and terminating upon the periphery of the rotor, the housing having recessed inner walls whereby communication between the grooves may be effected and whereby fluid discharged from the ducts may enter said grooves, a valve block extending into the recess in the rotor having an upper and a lower duct with which the ducts in the rotor alternately communicate, a discharge nozzle communicating with the chamber within the housing having a reduced discharge end, a coupling having a cha1nbr within which the discharge end of the nozzle is disposed, and a pipe extending into the chamber in the coupling and having a mouth into which the fluid discharged by the nozzle is directed, the pipe having a gradually enlarging bore receding from the mouth thereof.

5. In a device of the class described, the combination of a housing having a chamber formed withinit, a rotor revolubly mounted within the chamber havinga central recess, spiral ducts extending from the recess to the periphery thereof, and spiral grooves upon its opposite sides extending in the same direction as do the ducts and terminating upon the periphery of the rotor, the housing having recessed inner walls whereby communication between the grooves may be effected and whereby fluid discharged from the ducts may enter said grooves, a valve block extending into the recess in the rotor having an upper and a lower duct-with which the ducts in the rotor alternately communicate, means to revolve the rotor, a discharge nozzle communicating with the chamber within the housing having a reduced discharge end, a coupling having a chamber within which the discharge end of the nozzle is disposed, a pipe extending into the chamber in the coupling and having a mouth into which the fluid discharged by the nozzle is directed.

6. In a device of the class described, the combination of a housing having a chamber formed within it, a rotor revolubly mounted within the chamber having a central recess,

spiral ducts extending from the recess to the periphery thereof, and spiral grooves municating with the su and to throw fluid may be supplied to the ducts in the valve block, means to revolve the fotor, a discharge pipe whereby fluid may eave -t e periphery thereo and spiral grooves upon its opposite sides extending in the same direction as do the ducts and terminating upon the periphery of the rotor, the housing having recessed inner walls whereby communication between the grooves may be ef-" fected and whereby fluid discharged from the ducts may enter said grooves, a valve block extending into the recess in the rotor having an upper and a lower duct with which theducts in the rotor alternately commimicate, a dischar nozzle communicating with the chamber within the housing having a reduced discharge end, a coupling havin a chamber within which the discharge en of the nozzle is disposed, a pipe extendinginto the chamber in the couphng and having a mouth into which the fluid discharged by the nozzle is directed, means where y the chamber within the coupling may be placed communication with a container, the pressure within which is to be reduced, means to revolve the rotor, and means to su ply fluid to the lower duct in the valv bloc communicating also with the upper duct in the valve block.

8. In a system of the class described the combination of a boiler, radiators, pipes connecting the boiler and the radiators, a rotor pump adapted to operate upon a fluid the fluid outwardly from its center, a coup l associated with the rotor having 9. ch vthru which the fluiid passes from the rotor, a fluid susply tank, a pipe connecting the coupling an the fluid supply tank, means to divert fluid from the last mentioned ipe to the boiler, a valve block adapt to direct fluid to the rotor adjacent the center" thereof havand a lower duct, a pipe comply tank and the lower duct in the valve ock, a connection between the upper duct in the valve block and the last mentioned pipyqthe connection extending above the valve 1 a pipe com-s ing'an upper municating with the radiators and the coupling, means to revolublfil'nactuate the rotor, a pressure valve contro g the rotor actua means adapted to be placed in commumcation with the last mentioned pipe, a valve interposed between the pres sure valve and the last mentioned pipe the chamber within the housing, and means to establish communication bementioned pipe, the

the cage valve closes ofi 9. In a system of the class described the combination of a boiler, radiators, pipes connecting the boiler and the radiators, a rotor pump adapted to operate upon a fluid and to throw the fluid outwardly from its center, a coupling associated with the rotor having a chamber thru which the fluid passes from the rotor, a fluid sup ly tank, a pipe connecting the coupling an the fluid supply tank, means to divert fluid from the last mentioned pipe to the boiler, a valve block adapted to direct fluid to the rotor adjacent the center thereof having an upper and a lower duct, a pipe communicating with'the suppl tank and the lower duct in the' valve bloc a connection between the upper duct in the valve block and the last connection extending above the valve block, a pi e communicating with the radiators an the coupling, means to revolubly actuate the rotor, apressure valve controlling the rotor actuating means adapted to be placed in communication with the last mentioned pipe, a valve interposed between the pressure valve and the last mentioned pipe adapted to place the pressure valve in communication with the last mentioned pipe and with the atmosphere, means within the supply tank controllable by the fluid contents of the tank adapted to actuate the valve inte between the pressure valve and the ast mentioned pipe, and to control the fluid diverting means, and means controllable by the fluid contents of the supply tank for locking the fluid diverting means.

10 A fluid diverting device of the class described comprising a couilin having a bore at its opposite ends, a iap ragm sealing the ends of the bores from communion, tion, the coupling having a by-pass whereby communication between the bores may be es tablished, a connection whereby flmd may be directed to one of said bores, a cage valve reciprocally contained within the ,one bore controlling communication between the connection and the by-pass, a supply tank into which the one bore 18, adapted to discharge,

and into which fluids passing thru the conby the coupling when communication between the connection and the by-passilgid means within the supply tank contro by the fluid contents of the si' plply tank adapteId1 to reciprocate the cage 0.

11. a combination of a boilei,radiators, pipes connection are di v system of the-clam described the necting the boiler and the radiators, a rotor pump ada ted to operate upon a fluid and to throw t e fluid outwardl from its center, a coupling associated wit the rotor having a chamber thru which the fluid passes from the rotor, a fluid supply tank, a pi e connectingthe coupling and the fluid supp y tank, means to divert fluid from the last mentioned pipe to the boiler, a valve block adapted to direct fluid to the rotor adjacent the center thereof having an upper and a lower duct, a pipe communicating-with the supply tank and the lower duct in the valve block, a. connection between the upper duct in the valve block and the last mentioned pipe, the connection extending above the valve block, a ipe communicating with the radiators and t e coupling, means to revolubly actuate the rotor, a pressure valve controlling the rotor actuating means adapted to be placed in communication with the last mentioned pipe, a valve interposed between the pressure valve and the last mentioned pipe adapted to place the pressure valve in communication w1th the last mentioned pi e and with the atmos here, means within t e supply tank controllable by the fluid contents of the tank adapted to actuate the valve interposed between the pressure valve and the last mentioned pipe, and to control the fluid diverting means, means within the supply tank controllable by the fluid contents of the supply tank adapted to reciprocate the cage valve, and a second means controllable by the fluid contents of the supply tank for locking the cage valve against reciprocation.

In testimony whereof, I have hereunto subscribed my name this 21st day of June, 1922.

VioToR ROSENHAGEN. 

